Finding the Fourth Proportional to 22,241.98, 30,705.04 and 12,808.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,241.98 : 30,705.04 = 12,808.72 : x
2. Step 2: Convert to fraction form
   22,241.98/30,705.04 = 12,808.72/x
3. Step 3: Cross multiply
   22,241.98x = 30,705.04 × 12,808.72
4. Step 4: Simplify right side
   22,241.98x = 393,292,259.95
5. Step 5: Solve for x
   x = 393,292,259.95/22,241.98
6. Step 6: Final answer
   x = 17,682.43